LG 55LM860V (CHASSIS:LD23E) Service Manual ▷ View online
Appendix. Block Diagram for Edge/ALEF Backlight
[
XXLM960V
ALEF LED Backlight]
SPI/Vsync
FHD@240Hz
Quad-Link
HF mini-LVDS
8
SoC
TCON
(240Hz)
FRC-III
3D
Chip
Main
FRC
LED BLU control
LED BLU control
FHD@60Hz
Dual-Link LVDS For Video
FHD@60Hz
Dual-Link LVDS For OSD
V by One
IC401
LG5812B
LG5812B
IC100
LG1122A
LG1122A
DDR0_DATA[0~15]
IC200 DDR0
TXP 0~7
DDR0_A[0~12]
DDR1_DATA[0~15]
DDR1_A[0~12]
IC201 DDR1
RXAP 0~4
RXAN 0~4
RXBP 0~4
RXBN 0~4
51Pin LVDS
TXN 0~7
80Pin mini LVDS
LLV0~6P/N
LRV0~6P/N
RRV0~6P/N
RRV0~6P/N
Interconnection - 1
1
Main PCB
2
LED driver
3
WIFI ASSY
4
RF MOTION ASSY
5
IR Key PCB
6
FRC ASSY
[PCBs]
XXLM960V-ZB
PSU
7
1
2
5
6
7
3
4
Interconnection – sub PCB( XXLM960V Series )
RF MOTION ASSY
To Main
SPK unit
3
WIFI ASSY
4
RF MOTION ASSY
5
Local Key
PCB
1
IR Key PCB
Speaker cover Assy
IR PCB
WIFI ASSY
Contents of LCD TV Standard Repair Process
No.
Error symptom (High category)
Error symptom (Mid category)
Page
Remarks
1
A. Video error
No video/Normal audio
1
2
No video/No audio
2
3
Picture broken/ Freezing
3
4
Color error
4
5
Vertical/Horizontal bar, residual image,
light spot, external device color error
light spot, external device color error
5
6
B. Power error
No power
6
7
Off when on, off while viewing, power
auto on/off
auto on/off
7
8
C. Audio error
No audio/Normal video
8
9
Wrecked audio/discontinuation/noise
9
10
D. Function error
Remote control & Local switch checking
10
M4 operating checking
11
11
12
Wifi operating checking
12
13
External device recognition error
13
14
E. Noise
Circuit noise, mechanical noise
14
15
F. Exterior error
Exterior defect
15
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
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